Tag Archives: Mesolimbic pathway

Dopamine and Norepinephrine Contributing to Addiction?

March 20, 2015

Dopamine and Norepinephrine and Their Contribution to Addiction

Dopamine and norepinephrine are very crucial neurotransmitters whose functions can never be underestimated. These are some of the most crucial neurotransmitters in the body. In particular, dopamine has very many functions in the body but to many people it is famous for its good feeling effects that it is always identified with but this should not be the case as it has functions beyond the mesolimbic pathway. In the brain dopamine plays such roles as: It plays a big role in starting movement, and the destruction of dopamine neurons in an area of the brain called the substantia nigra is what produces the symptoms of Parkinson’s disease. Dopamine is involved in the frontal cortex in executive functions like attention and feelings among others. In the rest of the body, dopamine is involved in nausea, in kidney function, and in heart function. Though only relevant to most people when it comes to such aspects as motivation, addiction, attention or lust, dopamine is a crucial neurotransmitter that also does vital functions in different pathways. Therefore dopamine should not only be limited to the mesolimbic pathway. A pathway which starts with cells in the ventral tegmental area, buried deep in the middle of the brain, which send their projections out to places like the nucleus accumbens and the cortex.  the levels of dopamine is naturally controlled by the brain, for example when a person engages  in pleasurable activities the brain will increase the level of dopamine in the nucleus accumbens, however during addiction the dopamine signaling in this area is changed. For any drug to have any pleasurable feeling to the user then the level of dopamine must be increased and this is what causes euphoric feelings that drug users will do anything to achieve.

Dopamine

Dopamine depletion and cocaine addiction

Despite one of the most dangerous drugs of pleasure, cocaine has remained to be one of the drugs that are highly abused worldwide. Cocaine works in such a way that it targets the dopamine which is a neurotransmitter related with euphoric feelings. When taken cocaine will cause a surge of dopamine extracellular in limbic areas, specifically, nucleus accumbens it is this surge that causes euphoric effects cocaine is known for. It is the euphoric properties of cocaine that lead to the development of chronic abuse, and appear to involve the acute activation of central dopamine neuronal systems. Dopamine plays a key role in reward system and stimulation behavior. However, when a person uses cocaine for a long time his neurotransmitter and neuroendocrine alterations will eventually occur. Dopamine depletion is hypothesized to result from overstimulation of these neurons and excessive synaptic metabolism of the neurotransmitter. It is this depletion of dopamine that may underlie dysphoric aspects of cocaine abstinence, and cocaine cravings.  With many research findings on cocaine relations with dopamine, it is clear that cocaine addiction stems from the depletion of synaptic dopamine in the mesolimbic dopamine reward system, leading to a dysphoric withdrawal state that drives cocaine seeking to restore dopamine to normal, drug-dependence level.

After using cocaine for a long time, your brain will be conditioned to use cocaine in order to raise cocaine to the required levels and this result in addicted brain that can’t function without taking cocaine. At this stage it will be hard for an addict to quit using this drug as every time you try to quit all the withdrawal symptoms will set in thereby causing addiction and dependence thereafter. These cravings contribute not only to addiction but to relapse after a hard-won sobriety especially when the addict encounters triggers.

Norepinephrine and Drug Addiction

Norepinephrine is a very vital neurotransmitter in the brain that is also one of the most abundant in the brain. It is important for such roles as selective attention, general arousal, and stress reactions in challenging environments. Norepinephrine has been implicated by several studies as a key mediator of drug reward for three primary reasons. First, the noradrenergic pathways support intracranial self-stimulation (ICSS) and modulate drug-induced changes in ICSS threshold. Secondly, the biochemical activity of psychostimulant drugs includes blockade of Norepinephrine reuptake and enhancement of Norepinephrine release and thirdly, compounds that interfere with Norepinephrine synthesis or signaling influence drug self-administration. The idea that drugs of abuse act via the endogenous reward systems in the brain first arose when psychostimulants such as amphetamine and cocaine have been found to alter support intracranial self-stimulation thresholds. One interpretation of these results was that Norepinephrine mediates the effect of psychostimulants on support intracranial self-stimulation, because these drugs cause Norepinephrine release, block Norepinephrine reuptake or do both.

Dopamine

In a 1970s research done by Davis WM and Smith SG in a study titled: Catecholaminergic mechanisms of reinforcement: direct assessment by drug-self-administration, it was found that catecholamines were important in the mediation of opiate self-administration. in this research, a series of experiments showed that depletion of Norepinephrine and dopamine with amphetamine , a drug which is known to inhibit tyrosine hydroxylase prevents or attenuates the self-administration of morphine in rodents and in nonhuman primates as was shown earlier by Pozuelo and Kerr in 1972.

Finally, Drug addiction is a vice that should be fought by all means that is why we at AWAREmed Health and Wellness Resource Center are committed to availing help to addicts and offering them a place to call home. We offer NER Treatment and Amino acid therapy that are the most effective approaches to addiction treatment and recovery. You call on Dr. Dalal Akoury (MD) today and begin your journey to victory against addiction.

Dopamine and Norepinephrine and Their Roles in Causing Addiction

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Reward Deficiency Syndrome In Addiction

March 19, 2015

Reward Deficieny syndromeReward Deficiency Syndrome and Its Role in Addiction and Treatment

The first people to come up with the term Reward deficiency syndrome were Blum K, Sheridan PJ, Wood RC, Braverman ER, Chen TJ, Cull JG and  Comings DE in a research titled; The D2 dopamine receptor gene as a determinant of reward deficiency syndrome in 1996. This term refers to an insufficiency of usual feelings of satisfaction. Reward deficiency syndrome results from a dysfunction in the brain reward system which is a complex interaction among neurotransmitters primarily dopaminergic and opiodergic neurotransmitters. Those who have a family history of alcohol and other drugs addictions may be born with a deficiency in the ability to produce or utilize these neurotransmitters which are known to play crucial in etiology of addiction to substances. This problem can also be caused by corruption of brain reward system that may be caused by exposure to long periods of stress or use of alcohol and other substance for a long time. When the neurotransmitters are low or are blocked from reaching the intended brain receptors, individuals often feel discomfort or pain. Behaviors resulting from a failure of the system that normally confers satisfaction include drug and alcohol abuse, overeating, heavy cigarette smoking, gambling, and hyperactivity. These problems have been linked to genetic defects especially to dysfunction of the dopamine receptors.

A dysfunction in the dopamine receptors obviously leads to myriads of health complications since it is the brain neurotransmitter that controls feelings of well-being and is mostly targeted by drugs of abuse. However powerful dopamine doesn’t work alone, it interacts with other neurotransmitters like serotonin and other neurotransmitters to control moods and cravings. When these neurotransmitters bind on the neural receptors, they trigger a reaction in the reward system, therefore any interference with this coordination will result in abnormal behavior in Reward deficiency syndrome, including addictions, impulsivity, and excessive risk taking. This is the reason why people who have a defect in the DRD2 dopamine receptor gene lack a sufficient number of dopamine receptors in their brains to produce the brain reward cascade. In turn, this leads to Reward deficiency syndrome, including abnormal cravings and resultant strange conduct.

 

Reward deficiency syndrome and Drug Abuse

The reward circuitry consists of an in-series circuit linking the ventral tegmental area, nucleus accumbens and ventral pallidum via the medial forebrain bundle. In the past the reward circuitry was believed to encode only the set point of hedonic tone but have since been found to be functionally far more complex, also encoding attention, expectancy of reward, disconfirmation of reward expectancy, and incentive motivation. Here have been speculations that hedonic dysregulation within the reward circuits may lead to addiction. A second-stage dopaminergic component in this reward circuitry is the crucial addictive-drug-sensitive component. All drugs that are addictive are known to enhance the dopaminergic reward synaptic function in the nucleus accumbens. as for most of addictive drugs like cocaine the tolerance to the euphoric effects will develop after a long term use after which a post use dysphoria then comes to dominate reward circuit hedonic tone, and addicts no longer use drugs to get high, but simply to get back to normal. Reward deficiency syndrome as seen here may make an addict chained to the drug of use since the addict will need to feel normal but that will not possible since the dopamine receptors and parts of the reward circuit will have been affected adversely and so the drug use will be continued as a result of Reward deficiency syndrome and not for euphoric purposes.

It is also important to note that the brain circuits that mediates pleasurable effects of addictive drugs are anatomically, neurophysiologically, and neurochemically different from those mediating physical dependence, and from those mediating craving and relapse. Apart from Reward deficiency syndrome other factors that also come to play in addiction include gene variations that may increase vulnerability to drug addiction. Environmental factors also have an input for example prolonged stress and social defeat may also increase a person’s vulnerability to drug addiction as they alter the brain reward system. However dopaminergic dysfunction within the reward circuitry is the biggest contribution to addiction-prone personality effects.

Treating Reward deficiency syndrome

Reward Deficieny syndromeReward deficiency syndrome has influence in drug addiction and therefore any drug addiction treatment must incorporate strategies to treat Reward deficiency syndrome in order to avoid reoccurrence of the addiction after a hard won fight. In fact when the problem in the reward circuitry isn’t addressed then treatment of addiction will have very narrow chances of success. To help in this pursuit, treatment of cocaine addiction should have in part a dopamine agonist agonistic therapy to heal the dopaminergic system.

When an agonist therapy is to be used, it’s crucial to note that the baseline amount of dopamine receptors has predictability as to differential clinical outcomes in reward deficiency syndrome. In a study of 10 subjects with an allele on the Taq1A DRD2 gene, which is associated with reduced dopamine receptor concentration and decreased neural responses to rewards (A1+ subjects). The 10 subjects were scanned twice, once on placebo and once on cabergoline which is D2 receptor agonist. Consistent with an inverted-U relationship between the DRD2 polymorphism and drug effects, cabergoline increased neural reward responses in the medial orbitofrontal cortex, cingulate cortex, and striatum for A1+ subjects, but decreased reward responses in these regions for A1− subjects.  Drug addiction treatment should therefore put in place measures to ensure that reward deficiency syndrome is treated. Dr. Dalal Akoury of AWAREmed Health and Wellness Center has dedicated her life to helping patients restore their lives by use of integrative medicine. She also holds many conferences in which she offers training on how integrative medicine can be used to fight addiction among other conditions.  Call her on (843) 213-1480 for help.

Reward Deficiency Syndrome and Its Role in Addiction and Addiction Treatment

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Foods That Help Boost Serotonin Level

March 17, 2015

Foods That Raise Serotonin Level

Serotonin is one of the most important neurotransmitters in the brain. Serotonin helps in regulation of mood and sleep. According to recent research findings, when the level of serotonin is below optimum it can cause increased incidences  of aggressive behavior. Low serotonin levels have also been linked to anxiety and depression. If the recent research findings have to be believed which of course they are, then low serotonin levels are dangerous as it may lead to suicidal acts. In terms of dieting, making sure you’re not serotonin deficient is vital because serotonin triggers satiety after eating. Depressed serotonin levels is the likely reason why the vast majority of people cannot stay on a very low carbohydrate diet for the long term without feeling an unavoidable need to binge which may lead to more complex disorders. In the brain the production of neurotransmitter happens naturally without intervention of any other drug, however when you have used the drugs of abuse for some time they will lead to depletion in the levels of the brain chemicals such as serotonin and dopamine. This therefore means that for healthy levels of serotonin to be achieved after use of drugs, there is need for replenishing and supplementing serotonin through diet. There are foods that are very helpful in raising the levels of serotonin . Here are some of them.

Serotonin

Fresh Vegetables

Fresh vegetables work in myriad ways to ensure good health. the greens are rich in various minerals and vitamins that go along way in boosting the levels of serotonin. some of the fresh vegetables that are actually beneficial in increasing the level of serotonin include Spinach which contains a substantial dose of folic acid. it  is also a wonderful source of the mineral magnesium, a natural anxiety combatant. Without enough magnesium in your diet, you may find it hard to concentrate in addition to being fatigued and irritable. other foods that are rich in magnesium and hence helpful in boosting levels of serotonin include; cacao, seaweed, bananas, orange, tree nuts, peanuts, whole grains, corn, cheese, eggs, milk, and white fish.

Fresh Fruit

Fresh fruits are rich in nutritional content. The fresh fruits are rich in vitamins that serve the purpose of rejuvenating the body and giving it a healing approach as well as protecting the body and restoring crucial neurotransmitters like the serotonin which therefore helps in ensuring good moods. fruits are rich in B3 vitamins. these fruits may include watermelon, peaches, bananas, cantaloupe, and avocado. Generally, the B vitamins are very essential in restoration of neurotransmitters especially after a period of long term use of drugs of pleasure that are known to disrupt the functions of the neurotransmitters.

 Apples

An apple a day keeps the devil away is a common adage. The health benefits of apples are many and this explains why it is always recommended for patients. A compound found in apples called “quercetin’ is an antioxidant that studies have shown may not only help in the prevention of cancer but may also play an important role in the prevention of neurodegenerative disorders. the medicinal abilities of this compound is confounding. It also helps in boosting serotonin as well as dopamine levels.

 Herbs that Boost Serotonin Levels:

SerotoninSt. John’s wort -St. John’s wort is effective against mild to moderate depression, alleviates anxiety, insomnia, and irritability and eases pain. It increases the level of serotonin in the brain as well.

Dandelion– This herb is widely used in Europe as an excellent liver detoxifier and mild diuretic. It increases the flow of bile and encourages both the transformation and transportation of nutrients. It has been used historically to treat liver disorders, arthritis and gout. In the addict it will ease the transportation of nutrients in the body and restore energy in the cells as well as boost the level of serotonin.

Cannabis- though known for all the wrong reasons, cannabis has very high medicinal content, however it is highly addictive and that dictates that it be used in moderation as unregulated use can cause addiction. It works in a way that it increases the levels of excitatory neurotransmitters like dopamine and serotonin.

Burdock– burdock has been used to treat other conditions ranging from arthritis to diabetes to hair loss, and it’s an active ingredient in some cancer treatments this herb is also good in resoring the levels of serotonin.

Ginseng–  contrary to what many people believe , ginseng does not only increase the level of serotonin in the body but also works in rejuvenating, restorative, boosts energy and vitality and is tonic to the brain. Ginseng is often prescribed for patients fighting depression which is a common symptom of withdrawal from drug use. This herb is a better therapy for those who are under physical, emotional, mental or spiritual stress as it is a very strong antidepressant and adaptogenic. Ginseng promotes strong nerves, sound sleep, improves memory, clear thinking and enhances concentration.

Use of drugs for along time causes damage to the neurotransmitters. apart from the foods and the herbs, you can also increase the level of serotonin by sunlight. Bright light increases the production of Serotonin in the body.  Basking in the sunlight can absolutely improve your mood and also soothe muscle aches. It is good to note that by increasing the level of serotonin in your body, you are setting good grounds for addiction treatment and recovery. However, these problems need to be treated effectively through integrative medicine. Dr. Dalal Akoury (MD) is an expert at this.  Call her on (843) 213-1480 for help.

Foods That Raise Serotonin Level

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Stem Cell Therapy May Offer an Effective Parkinson’s Disease Treatment

March 7, 2015

Stem Cell Therapy May Offer an Effective Parkinson’s Disease Treatment

The Parkinson’s disease has affected many people in the past and it still startles to know that this disease is still affecting millions of people across the globe. Doctors have been treating only the symptoms of this disease as there is no known cure of the Parkinson’s disease. Recently there has been lots of research on the field of integrative regenerative medicine to help in treatment of this disease. The stem cell therapy is one of the ways that have been investigated by researchers to establish if there is a possibility of this disease having a known cure which is effective.

Despite the fact that the Parkinson’s disease has no known cure, the cause of this disease is known. This disease is caused by the continued loss of dopamine-producing cells in the brain. Dopamine is a crucial brain chemical that helps to regulate movement and emotional responses among other functions.

When a person is suffering from this disease, he will suffer deficiency of dopamine. The Parkinson’s disease is known to target and kill dopamine-producing nerve cells, or neurons, in part of the brain called the substantia nigra. The effects of Parkinson’s disease on the nerve cells of the brain may be the reason for such problems in sleeping, motivation and thinking that Parkinson’s disease is known for but also it has been linked to the linked to the formation of clumps of a protein called alpha-synuclein in the brain. These abnormal protein clumps are called Lewy bodies and are dangerous in the body.

Continued death of the nerve cells results in Parkinson’s patients developing tremors and rigidity, as well as slowed movements. Other conditions that these patients will suffer from as a result of continued death of the nerve cells in the brain includes depression, sleeping disorders, dementia and even constipation. However dementia may be suffered at a much later stage when the damage on the nerve cells has spread widely. They may also lose their sense of smell.

Parkinson’s Disease

Due to the fact that depletion of dopamine causes Parkinson’s disease, doctors have been utilizing treatments that are useful in boosting the levels of dopamine din the brain. One of the most commonly used treatments is the use of a drug known as the Levodopa. This drug has been in use since 1960s when it was discovered. It works in a manner that supplements dopamine levels as it converts into dopamine while in the body. In this case the drug Levodopa stands in for the damaged neurons that ought to produce dopamine. Currently there are also other drugs that are used as dopamine to stimulate the nerve endings. Patients may also go through some therapies and put on special diets all aimed at improving the dopamine levels. In case the disease has advanced a patient may have to be treated through surgeries which may include deep brain stimulation with implanted electrodes. however, the treatments that have been mentioned above only work to mitigate on the effects of the symptoms of Parkinson’s disease but do not slow down or reverse the damage that the disease cause on the nerve cells in the brain. It has also been reported that even with the above treatments it reaches a time when the patient’s condition will deteriorate. There has also been a problem with early detection of the disease as mostly the disease is diagnosed lately after a patient has lost most of his dopamine and the nerve cells in the brain are already damaged. It is with the view of seeking a whole treatment for the disease that scientists began research on the ability of the stem cells to treat Parkinson’s disease.

The stem cell therapy may help

Parkinson’s disease is a dark medical field, its immediate cause isn’t known but scientists have today known which part of the brain is affected by this disease as well as the cells that are often affected by the disease. the stem cells which are known replicate several times giving rise to new cells are already being used to grow dopamine producing nerve cells in laboratories to aid the study of this disease. The stem cells are majorly used in the labs when the genetic cause of the disease is known. The disease destroys cells but through stem cells therapy, the damaged cells can be replaced by healthy new cells of the same type.

Research studies of 1980-90s bred hope

Parkinson's DiseaseIn 1980-90s researchers worked to find out if the cell replacement therapy could be used to quell the harmful effects of the Parkinson’s disease. The findings of these researchers have since been a foundation upon which current researchers increase the scope of their study on the effects of cell replacement therapy on the Parkinson’s disease. Particularly, Swedish, American and Canadian researchers have transplanted the developing nigral dopamine-producing neurons from human fetuses into animals and human patients with Parkinson’s disease. In these studies there were some great improvements while in other cases there were only modest changes.

A new study has since resurfaced. This study is much larger in scope and will include clinical trials. The study titled TRANSEURO aims at addressing the issues of consistency in efficacy as well as reduction in side effects associated with stem cell transplant. There is optimism that stem cell transplant to replace the damaged nerve cells could help in fighting this disease. Dr. Dalal Akoury (MD) is an expert in integrative medicine and a founder of AWAREmed Health and Wellness Center located at Myrtle Beach South Caroline. Visit her for more information on most lifestyle diseases.

Stem Cell Therapy May Offer an Effective Parkinson’s Disease Treatment

 

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Herbs That Increase Dopamine Level

February 25, 2015

Herbs That Increase Dopamine Level

Popularly known as the brain’s feel good hormone, dopamine is responsible for sending feelings of well-being and pleasure into the body.  Apart from this known function, other functions of dopamine include; control weight, energy levels, and supports brain and heart health. Without it, we would be more fat, unhappy, and tired. Dopamine is one of the most crucial neurotransmitters in the body. Dopamine has very many functions in the body but to many people it is famous for its good feeling effects that it is always identified with but this should not be the case as it has functions beyond the mesolimbic pathway. In the brain dopamine plays such roles as: It plays a big role in starting movement, and the destruction of dopamine neurons in an area of the brain called the substantia nigra is what produces the symptoms of Parkinson’s disease. Dopamine also plays an important role as a hormone acting to inhibit prolactin to stop the release of breast milk. Back in the mesolimbic pathway, dopamine can play a role in psychosis, and many antipsychotics for treatment of schizophrenia target dopamine. Dopamine is involved in the frontal cortex in executive functions like attention. In the rest of the body, dopamine is involved in nausea, in kidney function, and in heart function. Owing to its many functions that are all crucial, it is important that dopamine be in good levels for the optimal performance of the body.

Ginseng

Dopamine is crucial in our bodies but the use of drugs of abuse will lead to depletion of dopamine giving rise to some diseases like depression among others. Some drugs of leisure are loved for their euphoric feelings; they affect the normal production of brain chemicals. At the beginning they may induce a sudden surge in the production of feel good brain chemicals, however when you have used the drugs for some time they will lead to depletion in the levels of the brain chemicals such as serotonin and dopamine. In the brain the production of neurotransmitter happens naturally without intervention of any other drug. These basic neurotransmitters include; dopamine, serotonin, GABA, acetylcholine. The body also produces other chemicals known as endorphins which work as the body’s own opiates functioning to fight pain naturally.

These neurotransmitters have specific functions that they accomplish in the body. Each function is important and works in conjunction with the functions of the other neurotransmitters to make life what it ought to be. These functions are; Serotonin regulates sleep and appetite, Acetylcholine for processing information and memory, GABA acts as your calming neurotransmitter while dopamine is the feel good chemical, plays an important role in mood, energy, attitude, motivation.

When you use these drugs of pleasure thy hike the levels of dopamine in the brain beyond the accepted levels. This will force the brain to find a means by which to suppress the production of the neurotransmitter that has been hiked by drug use. naturally, the production of dopamine will be reduced by the brain after sensing that the hike in the levels of dopamine is caused by factors out of the body, therefore when a person who has been using drugs stops using them, the levels of dopamine and serotonin will be too low below the normal levels and this beckons such feelings of depression, anxiety, nervousness and lack of interest in everything. The level of dopamine in the body can however be restored naturally by use of herbs. Here are some of the herbs that are effective in restoring levels of dopamine even after drug use.

The Dopamine Boosters

St. John’s wort Ginseng– ginseng does not only increase the level of dopamine in the body but also works in rejuvenating, restorative, boosts energy and vitality and is tonic to the brain. Ginseng is often prescribed for patients fighting depression which is a common symptom of withdrawal from drug use. This herb is a better therapy for those who are under physical, emotional, mental or spiritual stress as it is a very strong antidepressant and adaptogenic. Ginseng promotes strong nerves, sound sleep, improves memory, clear thinking and enhances concentration.

Red clover -Red clover not only increases the dopamine levels in the brain but also nourishes the entire body, provides plenty of protein, B vitamins, and calcium, all essential brain nourishing nutrients.

St. John’s wort -St. John’s wort is effective against mild to moderate depression, alleviates anxiety, insomnia, and irritability and eases pain. It increases the level of dopamine in the brain as well.

Peppermint– contrary to what many people believe, peppermint is not psychoactive but is rather sedating, stimulating and pain relieving. Peppermint is one of the many herbs that can be used to restore the level of dopamine in the brain and restore the normal bodily functions.

Fenugreek -Fenugreek is a herb and a spice commonly eaten in many parts of the world, and has been used for centuries by practitioners of Ayurvedic Herb medicine and Traditional Chinese Medicine. It also increases the levels of dopamine and so can be used by patients whose dopamine level have floored as a result of drug use.

Today the patients have varied options when it comes to restoring the levels of testosterone in the body, however going the natural way is more beneficial as it is safe and inexpensive as well. It is good to note that by increasing the level of dopamine in your body, you are setting good grounds for addiction treatment and recovery. However, these problems need to be treated effectively through integrative medicine. Dr. Dalal Akoury (MD) is an expert at this.  Call her on (843) 213-1480 for help.

Herbs That Increase Dopamine Level

 

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